Vapor-lamp.



J. E. LOCKWOOD.

VAPOR LAMP. APPLICATION FILEDSEPT- l6, IBIZ 1,169,411. Patented Jan. 25, 1916.

witnesses in Uerztor JamasZYZac hoomg THE coLuMulA F'LANOGRAPII cu., WASHINGTON. n C.

UITE STATES ATN'I JAMES E. LOCKWOOD, OF PEORIA, ILLINOIS, ASSIGNOR TO EDWARD SEITZ, 0F PEORIA,

ILLINOIS.

VAPOR-LAMP.

Application filed September 16, 1912.

T 0 all whom it may concern Be it known that I, JAMES E. Loc'xwoon, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Vapor-Ilamps; and I do hereby declare that the following is a fun, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to vapor lamps.

It pertains more particularly to a pair of opposed vapor burners and a mantle stationed between and by them and heated to incandescence by the burning vapor issuing from each.

One of the objects of the invention is toprovide means for supplying vapor to both ends of a tubular mantle instead of supplying it to one end of a mantle closed at its other end, as in common practice, whereby said mantle will have the same incandescence throughout and thus increase the light or, the amount it is capable of emitting.

Another object is to provide a support for opposite ends of a mantle whereby breakage of the latter due to jars or sudden blows will be prevented.-

Another object is to provide a gas mantle for stationarv use, and in lamps such as are used in auto-mobiles, which in order to be safe from breakage through jars and sudden blows, is supported at both ends and also is supplied with vapor at both its ends whereby its light giving power will be increased.

Still another object is that of producing a form of lamp the mantle for which can be made at less expense than the usual form of mantle or that constructed like a bag in that the fabric of which the mantles are made can be woven in a tubular form and merely cut into proper lengths, each length being provided at each end with a drawstring by which to attach it to the burners without sewing or stitching or other preliminary work.

In the accompanying drawing, I have shown the invention in one of its preferred forms.

Figure 1 illustrates the invention in which two opposed burners are illustrated showing a single-mantle attached to them. Fig. 2 shows the mantle in perspective. Fig. 3

Specification of Letters Patent.

Patented Jan. 25, 1916.

Serial No. 720,450.

is a longitudinal section of a burner and a portion of the tube or pipe for supplying vapor thereto, and Fig. 4 shows the face of one of the burners.

A indicates any suitable vapor pipe leading from the source of vapor-supply, not shown, to which is connected a fitting B. This fitting includes two lateral extensions 0 C each of which receives vapor from the said pipe A. Each has a recurved portion represented by D and D which approach one another and have open ends lying opposite one another, all of the parts being imperforate except for said open ends.

A burner of any approved form as E, E, is carried by each recurved portion described or may be removable therefrom, as, for instance, by means of any suitable slip joint. I have preferred to make one ofthe burners removable merely to afford greater ease in attaching the mantle to the lamp. For example, in Fig. 1 the sleeve F of the burner E is provided with a bayonet slot G. A pin I-I secured in or cast with the extension D is engaged by said slot by first slipping the burner upon the extension so that the pin enters said slot, then imparting a partial rotation to said burner so that the pin will lie in the transverse portion of said slot, and the burner is prevented from slipping off. However, mere plain slip joints may be provided for either or both of the burners, that is to say, suflicient friction may be provided between the burner and the extension carrying it to hold the parts firmly together.

The burners E are provided each with the usual perforated end portion through which the vapor is discharged into the mantle and by means of which the vapor in the system is prevented from being ignited and from damaging the piping and rupturing the mantles.

By employing one of the latter methods the mantle indicated at J may be tied at its ends upon the sleeves of the burners one or both of which may have been previously removed from the extensions D and D whereupon said burners may he slipped upon the extensions, the mantle being spread to its proper position for use. Of course, one of the burners may be adjustably attached by a slip joint, while the other may be threaded upon its extension in the usual manner. The

parts B, C, D, D, may be of any preferred form since, of course, I do not necessarily confine myself to that illustrated. V

The mantle consists ofa tubular woven or knitted fabric open at its ends and preferably provided with draw strings at each end. WVhile it may be tied at its ends upon the sleeves of the burners it, of course, can be contracted by the draw strings so that its ends can be slipped upon said sleeves in which event the sleeves would not necessarily be enlarged, but this is all within the meaning of the invention. i

' The mantle can be produced at little eX- pense as compared with other forms because it can be made in continuous tubular form and required lengths cut off and provided with the draw strings and there is no stitching or careful work required in the finishing as in the common closed-end suspended mantle. 1

For use in vehicles these parts may be made comparatively small in diameter while large enough to convey the proper amount of vapor to the mantle and it will be seen that by supporting both ends of the mantle in the manner shown and described breakage V a of that member cannot result from jars or vibrationseven under the most unfavorable circumstances." a r V Adbuble burner of the type described herein or'one in which twoo enings fa'Cecne another for the discharge of hydrocarbon vapor, each covered by a perforate dia- Copies of this patent may be obtained for five cents each, by addressing phragm, I believe tobe new and a better result is produced than that derived from a single which arrest and stop the flow of vapor that would otherwise enter.

Having thus described my invention, I claim: p

1. A vapor lamp burner-structure consisting of a vapor conduit divided into two branches or arms each branch or arm having a place of discharge, one facing the other, the structure being otherwise imperforate, the places of discharge of each branch being covered by a perforate diaphragm. V

2. A vapor lamp comprising a vapor conduit terminating in two imper'forate branches placed in opposed positions and each provided with an opening, one facing the other, a perforate'diaphragm covering each opening, a fabric mantle carried at one end on one of the branches, and a removable portion slidably engaging the other branch and carrying the opposite end of the mantle. In testimony whereof I affix my signature in presence of two witnesses.

' JAMES E. LOCKWOOD. WVitnesses:

' W. I.-SEMMONS, L; M. THURLoiv.

the Commissioner of Patents,

Washington, D. C. e 

